diff --git a/Bin/SunnyUI.dll b/Bin/SunnyUI.dll
index c867a620..39a1d408 100644
Binary files a/Bin/SunnyUI.dll and b/Bin/SunnyUI.dll differ
diff --git a/SunnyUI/Forms/UIForm.cs b/SunnyUI/Forms/UIForm.cs
index 987a413b..b0b84bad 100644
--- a/SunnyUI/Forms/UIForm.cs
+++ b/SunnyUI/Forms/UIForm.cs
@@ -411,7 +411,7 @@ namespace Sunny.UI
 
         protected override void OnMouseClick(MouseEventArgs e)
         {
-            if (FormBorderStyle == FormBorderStyle.None)
+            if (FormBorderStyle == FormBorderStyle.None && ShowTitle)
             {
                 if (InControlBox)
                 {
diff --git a/SunnyUI/SunnyUI.csproj b/SunnyUI/SunnyUI.csproj
index 3f5932d2..5950f25c 100644
--- a/SunnyUI/SunnyUI.csproj
+++ b/SunnyUI/SunnyUI.csproj
@@ -431,6 +431,7 @@
     <Compile Include="Units\UConcurrentDoubleKeyDictionary.cs" />
     <Compile Include="Units\UConcurrentGroupDictionary.cs" />
     <Compile Include="Units\UDateTimeInt64.cs" />
+    <Compile Include="Units\UJson.cs" />
     <Compile Include="Units\UJsonConfig.cs" />
     <Compile Include="Units\USnowflakeID.cs" />
     <Compile Include="Units\USuspendCtrlAltDel.cs" />
diff --git a/SunnyUI/Units/UJson.cs b/SunnyUI/Units/UJson.cs
new file mode 100644
index 00000000..e7e7c87e
--- /dev/null
+++ b/SunnyUI/Units/UJson.cs
@@ -0,0 +1,73 @@
+/******************************************************************************
+ * SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
+ * CopyRight (C) 2012-2020 ShenYongHua(沈永华).
+ * QQ群：56829229 QQ：17612584 EMail：SunnyUI@qq.com
+ *
+ * Blog:   https://www.cnblogs.com/yhuse
+ * Gitee:  https://gitee.com/yhuse/SunnyUI
+ * GitHub: https://github.com/yhuse/SunnyUI
+ *
+ * SunnyUI.dll can be used for free under the GPL-3.0 license.
+ * If you use this code, please keep this note.
+ * 如果您使用此代码，请保留此说明。
+ ******************************************************************************
+ * 文件名称: UJson.cs
+ * 文件说明: Json扩展类，不引用第三方组件实现简单的Json字符串和对象的转换
+ * 当前版本: V2.2
+ * 创建日期: 2020-10-21
+ *
+ * 2020-10-21: V2.2.9 增加文件说明
+******************************************************************************/
+
+using System;
+using System.IO;
+using System.Text;
+using System.Web.Script.Serialization;
+
+namespace Sunny.UI
+{
+    public static class Json
+    {
+        public static T Deserialize<T>(string input)
+        {
+            try
+            {
+                JavaScriptSerializer js = new JavaScriptSerializer();
+                return js.Deserialize<T>(input);
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e.Message);
+                return default(T);
+            }
+        }
+
+        public static string Serialize(object obj)
+        {
+            JavaScriptSerializer js = new JavaScriptSerializer();
+            return js.Serialize(obj);
+        }
+
+        public static T DeserializeFromFile<T>(string filename, Encoding encoding)
+        {
+            string jsonStr = File.ReadAllText(filename, encoding);
+            return Deserialize<T>(jsonStr);
+        }
+
+        public static string SerializeToFile(object obj, string filename, Encoding encoding)
+        {
+            string jsonStr = Serialize(obj);
+            try
+            {
+                DirEx.CreateDir(Path.GetDirectoryName(filename));
+                File.WriteAllText(filename, jsonStr, encoding);
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e.Message);
+            }
+
+            return jsonStr;
+        }
+    }
+}
diff --git a/SunnyUI/Units/UJsonConfig.cs b/SunnyUI/Units/UJsonConfig.cs
index 3cb23abe..c6ef11f0 100644
--- a/SunnyUI/Units/UJsonConfig.cs
+++ b/SunnyUI/Units/UJsonConfig.cs
@@ -22,7 +22,6 @@
 using System;
 using System.IO;
 using System.Text;
-using System.Web.Script.Serialization;
 
 namespace Sunny.UI
 {
@@ -54,9 +53,7 @@ namespace Sunny.UI
 
             try
             {
-                string jsonStr = File.ReadAllText(filename, Encoding.Default);
-                JavaScriptSerializer js = new JavaScriptSerializer();
-                current = js.Deserialize<TConfig>(jsonStr);
+                current = Json.DeserializeFromFile<TConfig>(filename, Encoding.Default);
                 return true;
             }
             catch (Exception ex)
@@ -80,10 +77,7 @@ namespace Sunny.UI
                 throw new ApplicationException($"未指定{typeof(TConfig).Name}的配置文件路径！");
             }
 
-            JavaScriptSerializer js = new JavaScriptSerializer();
-            string jsonStr = js.Serialize(current);
-            DirEx.CreateDir(Path.GetDirectoryName(filename));
-            File.WriteAllText(filename, jsonStr, Encoding.Default);
+            Json.SerializeToFile(current, filename, Encoding.Default);
         }
     }
 }
\ No newline at end of file